<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>js示例4-8-4</title>
	<script>
		var charS = ["a","b","c","d","e","f","g","h","i","j"];
		alert(charS[2]);
	</script>
</head>
<body>
	
</body>
</html>